The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 1997
Filed:
Apr. 04, 1995
Applicant:
Inventors:
Assignee:
Bayer Aktiengesellschaft, Leverkusen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07L / ;
U.S. Cl.
CPC ...
560 62 ; 504317 ;
Abstract
The present invention relates to an-economically and ecologically advantageous process, which is easy to carry out, for the preparation of specific polyethylene glycol diesters of 2-(4-chloro-2-methylphenoxy)-propionic acid, and to the substance mixture obtainable by this process and the use thereof as a root penetration inhibitor in building materials and insulating compositions, such as, for example, bitumen.